Genesis 17:11

17:11 You must circumcise the flesh of your foreskins. This will be a reminder of the covenant between me and you.

Genesis 21:30

21:30 He replied, “You must take these seven ewe lambs from my hand as legal proof that I dug this well.”

Genesis 24:4

24:4 You must go instead to my country and to my relatives to find a wife for my son Isaac.”

Genesis 28:1

28:1 So Isaac called for Jacob and blessed him. Then he commanded him, “You must not marry a Canaanite woman!

Genesis 34:15

34:15 We will give you our consent on this one condition: You must become like us by circumcising all your males.